Drilling and sealing of frozen holes is a crucial step in the construction of connecting channels using the freezing method.Improper quality control in each step may lead to construction risks.Based on previous risk cases in the construction process of freezing holes connecting channels using the freezing method,this paper analyzes the shortcomings of conventional freezing hole drilling sealing and sealing technology,and studies a new type of freezing method connecting channel freezing hole drilling sealing and sealing construction technology for pre-embedded hole mouth pipes.At the same time,the feasibility of the technology is verified through experiments,providing support for the safe construction of freezing method connecting channels in the future.